Mössbauer spectra of partially inversed spinels

Abstract

A method is given for determining the sign of the electric field gradient and examining the cation distribution from the characteristic changes in the symmetry of particular positions in the structure on successive change in composition in order to determine the cation distributions over the nonequivalent positions in chrome spinels.

Keywords

We are indebted to Sh. Sh. Bashkirov, V. N. Lebedev, and I. N. Pen'kov for direction in this work and valuable comments, and to I. I. Grigor'eva and N. V. Pavlov (Institute of Geology and Experimental Mineralogy, Academy of Sciences of the USSR) for providing the chrome spinel specimens.